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钨矿床绝大部分属于高温热液黑钨石英脉型。由于矿脉一般都比较窄,采矿贫化率高,矿石采出后均采用人工手选先行丢弃部分废石。人工手选不仅耗用劳动力多(有些厂矿的手选工约占选矿工人总数的一半),劳动强度大,而且难以提高生产指标。虽然有些选矿厂用光电选矿机代替部分人工手选,一定程度上改善了工人的劳动条件,但是光电选矿机分选效率低,尤其是它只能黑白分选,致使品位很高的单体黑钨块被分选到废石里去了,还必须用手选挑拣回收。为了适应社会主义建设发展的需要,研制新型
Most tungsten deposits belong to high temperature hydrothermal tungsten quartz vein type. As the veins are generally relatively narrow, mining, high rate of depletion, after mining ore are hand-selected first to discard some of the waste rock. Artificial selection not only consume more labor (some factory hand mine workers accounted for about half of the total number of workers), labor-intensive, and difficult to increase production targets. Although some concentrator optoelectronic concentrators instead of using some hand-selected, to some extent, to improve the working conditions of workers, but the optoelectronic concentrator sorting efficiency is low, in particular, it can only black and white sorting, resulting in high grade black monomer Tungsten is sorted into waste rock, and must be picked and recycled by hand. In order to meet the needs of the socialist construction and development, research and development of new types